Greatest Common Factor of 129, 123, 840

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

• Greatest Common Factor of 129, 123, 840 by common division method
• Greatest Common Factor of 129, 123, 840 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 = 3

Factors of 129

List of positive integer factors of 129 that divides 129 without a remainder.

1,3,43,129

Factors of 123

List of positive integer factors of 123 that divides 123 without a remainder.

1,3,41,123

Factors of 840

List of positive integer factors of 840 that divides 840 without a remainder.

1,2,3,4,5,6,7,8,10,12,14,15,20,21,24,28,30,35,40,42,56,60,70,84,105,120,140,168,210,280,420,840

Greatest Common Factor

We found the factors 129,123,840 . The biggest common factor number is the GCF number.
So the greatest common factor 129,123,840 is 3.

Here are some samples of GCF of two or more Numbers calculations.

• GCF of 694, 352, 108
• GCF of 679, 564, 332
• GCF of 123, 252, 431
• GCF of 719, 928, 959
• GCF of 726, 130, 531

1. What is the GCF of 129, 123, 840?

Answer: GCF of 129, 123, 840 is 3.

2. How to Find the GCF of 129, 123, 840

Answer: Greatest Common Factor(GCF) of 129, 123, 840 = 3

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(129, 123, 840) = 3.